Matei Copot
Mentor
(7 reviews)
US$15.00
For every 15 mins
16
Sessions/Jobs
ABOUT ME
JavaScript Expert | TopTal Talent, Olympic Mathematician, 10+ years Full-Stack Senior Software Engineer, Certified Ethical Hacker
JavaScript Expert | TopTal Talent, Olympic Mathematician, 10+ years Full-Stack Senior Software Engineer, Certified Ethical Hacker
I'm Matei, a full-stack developer with over 10 years of experience, specializing in JavaScript, React, and Node.js. I help developers at all levels overcome challenges, from debugging complex issues to understanding core concepts. My approach is patient and tailored to your needs, ensuring you gain confidence and clarity in your coding journey.
Format:
- regular (long term) or one-time
- for any level (beginner/intermediate/advanced)
- 45-90min sessions, up to 6hrs on request
- personalized take-home tasks & resources
Availability:
- until Jul 15: 4:00-6:00, 15:00-18:00 UTC
- after Jul 15: 4:00-18:00 UTC
- last minute or late night sessions on request (email matei@copot.eu)
Technologies:
- JavaScript: ESNext, NodeJS/Deno, TypeScript, React, Vue, NodeMCU, & more
- Front-end Web Dev: HTML5, CSS3, responsive design, PWAs, SPAs, & more
- Back-end Web Dev: Express/NextJS APIs, Python, AWS, Docker, SQL, PHP, & more
- App Dev: Mac/Linux & Android, Electron, Expo, Python, Stripe, UX, & more
- others: always curious about other technologies, e.g. haskell, ruby, WASM, WebGL...
= Why me?
I'm typically paid €100/hr by top companies, so the lower rate here means you're getting top-tier expertise at an accessible price. I enjoy mentoring because it brings variety and a more collaborative and relaxed dynamic.
I have a proven track record of guiding learners from zero experience to landing high-paying jobs. My teaching adapts to your pace and goals — you'll always get honest, actionable advice, including what’s realistic and what’s not.
If you're serious about growing your skills or career in tech, I’d be glad to support your journey.
Prague (+02:00)
Joined July 2017
EXPERTISE
12 years experience
7 years experience
7 years experience
10 years experience
4 years experience
REVIEWS FROM CLIENTS
(7 reviews)
Mike lemon
April 2025
Matei was great. Highly recommend
Sebastian Nadeau
April 2025
Matei went above and beyond to troubleshoot my issue for me in a library that is not well known. He is very reasonable, and can troubleshoot, debug, and problem-solve on the fly. He also communicates well in English. Would highly recommend.
Removed User
January 2024
He's very knowledgeable and patient! I really like his style of teaching. He walks you through the code and explains why certain things and why other things may not. He also teaches you efficient ways to debug. I cannot recommend him enough!
SOCIAL PRESENCE
flappyBox
game by towc for js13kgames 2015
JavaScript
10
3
glitch-maze
js13k 2016
JavaScript
2
1
1993 Reputation
2
22
36
EMPLOYMENTS
Senior Software Engineer
MetaVoice
2023-01-01-2023-10-01
- Spearheaded a team of full-stack developers in deploying a high-traffic machine learning service, pivotal to a seed-stage startu...
- Spearheaded a team of full-stack developers in deploying a high-traffic machine learning service, pivotal to a seed-stage startup's product lineup.
- Managed comprehensive project development, encompassing UI/UX design, multi-backend API integration, system monitoring, analytics, user authentication, payment processing, support infrastructure, and machine learning inference servers.
- Instrumental in expanding the user base by over 100-fold through strategic analysis of user behavior, proactive community engagement, feedback incorporation, and continuous feature enhancement.
- Led the successful transition of an on-device machine learning service from alpha to general availability, including the open-sourcing of key components.
HTML/CSS
Python
Git
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HTML/CSS
Python
Git
Linux
CSS3
PostgreSQL
Vim
GitHub
SSH
OAuth
CUDA
SMTP
GPU
Markdown
Speech Recognition
Physics
Stripe
Web Development
Algorithm
Docker
React
Google Cloud Platform
Jwt
Webpack
Kubernetes
POP3
Sentry
Jira Administration
Slack
AWS Lambda
Growth Strategies
Color Theory
Windows Application
Next.js
Electron.js
PyTorch
VS Code
Discord
App ux design
RESTful API
Open Source Software
Tailwind css
Speech synthesis
Speech Processing
ClickHouse
Supabase
macOS
AWS
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Software Engineer
DeepChannel
2019-12-01-2022-10-01
- Developed a sophisticated, multi-dialect, error-recovering SQL parsing system for linting and completions, delivering immediate ...
- Developed a sophisticated, multi-dialect, error-recovering SQL parsing system for linting and completions, delivering immediate foundational results.
- Executed seamless integration with Ace and Monaco editors within a multi-threaded React/Electron framework.
- Founded and led a dedicated team for the sustained advancement of the parser, instituting robust team processes and best practices for long-term development success.
HTML/CSS
Python
C++
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HTML/CSS
Python
C++
SQL
Node.js
Git
Linux
API
CSS3
PostgreSQL
GitHub
SSH
OAuth
Web Scraping
LESS
TypeScript
Markdown
Jira
GitLab
UI design
Google BigQuery
Web Development
Mathematics
Algorithm
Zsh
Docker
React
Google Cloud Platform
tmux
JavaScript
Jest
Webpack
Amazon Redshift
Sentry
Eslint
Jira Administration
Docker Compose
Redux
MVP Architecture
Snowflake
Electron.js
WebAssembly
VS Code
Data parsing
Cypress
SCSS
DBT
Sass
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Software Engineer
Toptal
2020-05-01-2020-08-01
- Swiftly executed enhancements for an ongoing competition, adapting rapidly to a new team and codebase within a matter of days.</l...
- Swiftly executed enhancements for an ongoing competition, adapting rapidly to a new team and codebase within a matter of days.
- Achieved an impressive eighth-place ranking among thousands of participants.
- Collaborated with the event organizer in crafting a comprehensive and insightful retrospective.
HTML/CSS
PHP
SQL
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HTML/CSS
PHP
SQL
OAuth
UI design
React
JavaScript
PyTorch
WebAssembly
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PROJECTS
Collaborative Authorship of 'Professional javascript' with Packt PublishingView Project
Packt Publishing
2020
Co-authored a comprehensive guide to industry-standard JavaScript practices, in collaboration with Packt Publishing and three fellow engi...
Co-authored a comprehensive guide to industry-standard JavaScript practices, in collaboration with Packt Publishing and three fellow engineers. The book encompasses a wide array of topics, including functional programming, garbage collection, and code formatting.
JavaScript
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JavaScript
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Leadership and Community Engagement in Tech HackerspaceView Project
2017
Embraced a leadership role in a vibrant hackerspace community, dedicating six months to enhancing its environment and fostering diverse t...
Embraced a leadership role in a vibrant hackerspace community, dedicating six months to enhancing its environment and fostering diverse technological collaborations. Responsibilities included daily maintenance and improvement of the space, organizing events on emerging tech topics like cryptocurrencies, 3D printing, and machine learning. Concurrently held part-time positions in other sectors.
Python
Hardware
JavaScript
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Python
Hardware
JavaScript
Cryptocurrency
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